#include <string>
+#include <list>
class XMLNode;
class Session;
}
-extern void check_xml (XMLNode *, std::string);
+extern void check_xml (XMLNode *, std::string, std::list<std::string> const &);
+extern bool write_ref (XMLNode *, std::string);
extern ARDOUR::Session* load_session (std::string, std::string);